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	Journal "Tekhnologiya Mashinostroeniya"	ISSN 1562-322X
	Contents (�12 2022)
to russian

ENGINEERING TECHNOLOGY

DOI: 10.34641/TM.2022.246.12.080
Belova I. V. � Investigation of the degradation of the structure of steel 15Kh5M

This article describes the study of the degradation of the structure of steel 15Kh5M using quantitative indicators of the structure. Based on the totality of values of quantitative indicators such as fractal dimension and density of grain boundaries, conclusions were drawn about the structural state. Numerical values of the structure organization parameter are given, at which the exploitation of the material is unacceptable.
Key words: corrosion, stainless steel, microstructure, fractal dimension, structure degradation

TECHNOLOGY AND MACHINES

DOI: 10.34641/TM.2022.246.12.081
Tetyushin I. D., Ivanov D. V. � Study of the static and dynamic characteristics of the spindle assembly of a lathe when changing its design parameters

This article discusses the issue of studying the most important requirements for spindle assemblies at the design stage. The possibilities of the program for calculating the static and dynamic characteristics of spatial mechanical systems SPINCH for modeling and calculating the spindle assembly are described. The influence of the design parameters of the lathe, such as: the overhang of the front end of the spindle, the distance between the supports of the spindle assembly and the stiffness of the front support on the main static and dynamic characteristics of the spindle assembly: static stiffness, vibration modes and amplitude-frequency response, was studied and the corresponding conclusions were drawn.
Key words: spindle assembly, dynamic calculation, frequency response, finite element method, vibrations, static calculation

TECHNOLOGY AND EQUIPMENT FOR MECHANICAL AND PHYSICAL-TECHNICAL PROCESSING

DOI: 10.34641/TM.2022.246.12.082
Ragrin N. A., Dyikanbaeva U. M., Ainabekova A. A., Kurganova D. M. � Scientific basis for hardening the surface layer of drilled holes

The holes used in the movable joints of the tooling must have high wear resistance, which largely determines the reliability of the movable joint, and hence the reliability of the tooling as a whole. Therefore, the purpose of the work: the development of patterns of influence of cutting conditions on the hardening parameters of the surface layer of drilled. The paper presents the results of experimental studies that made it possible to substantiate the nature of the influence of cutting speed and feed on the degree of work hardening of the surface layer and the depth of the defective surface layer of drilled holes.
The physical regularities of the direct and reverse influence of cutting speed and feed on the degree of work hardening and the depth of the defective surface layer of drilled and holes are disclosed.
Key words: hole, cutting speed, feed, drilling, work hardening, defective layer

WELDING, RELATED PROCESSES AND TECHNOLOGIES

DOI: 10.34641/TM.2022.246.12.083
Utkin I.Yu., Singaevsky V. N. � The influence of the chemical composition on the kinetics of austenite decomposition and the mechanical properties of the metal of the overheating zone of steels of strength class K65

The influence of the chemical composition of steels of strength class K65 on the change in the kinetics of austenite decay at different metal cooling rates characteristic of automatic multi-arc submerged arc welding, manual arc welding, shielding gas welding and laser welding is investigated. The change in the impact strength and hardness of the metal of the overheating zone is shown depending on the chemical composition of the steel and the cooling rate.
Key words: kinetics of phase transformations of austenite, alloying elements, overheating zone of the welded joint, mechanical properties

METHODS AND DEVICES FOR CONTROL AND DIAGNOSTICS OF MATERIALS, PRODUCTS

DOI: 10.34641/TM.2022.246.12.084
Dronov E. A., Barakhov V. I. � Evaluation of the heterogeneity of the distribution of volume fractions of the phase composition of cast iron in the elementary cells of the section of the billet of the cylinder of a diesel engine using X-ray computed tomography

One of possible approaches is given to evaluate non-uniformity in distribution of phase components volume fractions within cross-sections of iron unit cells under study in diesel engine cylinder blank, the approach is based on X-ray computational tomography.
To determine volume fractions of ferrite, alloyed cementite and graphite in the iron blank, we worked out our own tomographic method for determination of components volume fractions in the material. Particular example is given to show the results obtained in determination of phase component non-uniform distribution within wall thickness in iron blank cross-section, and a constituent is found to produce change in volume fractions along four radial directions.
Key words: non-uniformity in distribution, volume fractions, phase components, iron, cylinder blank, diesel engine, X-ray computational tomography

DESIGN, CONSTRUCTION AND PRODUCTION OF AIRCRAFT

DOI: 10.34641/TM.2022.246.12.085
Kopitsa V. A., Torpachev A. V. � The influence of the trend towards miniaturization of satellites on the development of private astronautics

The rapid development of microelectronics has led to the miniaturization of satellites and spacecraft. Private cosmonautics today takes an active part in the creation of carriers of light and ultralight classes for launching small space cargo into orbit. The article considers the creation of such means of withdrawal as one of the main directions of private business in the space industry.
Key words: small spacecraft, private cosmonautics, light and ultralight launch vehicles, private business

PRODUCT QUALITY MANAGEMENT. STANDARDIZATION. ORGANIZATION OF PRODUCTION

DOI: 10.34641/TM.2022.246.12.086
Zinets N. S., Martynov O.Yu., Feofanov A. N. � Long-term planning of parallel product development, communication and dependencies between types of work at the stages of development

Long-term planning of parallel product development allows you to make reasoned decisions on the timing and sequence of work. The article is devoted to the analysis of the requirements of regulatory documents for the stages of development, the identification of links and dependencies between works in order to develop a mathematical apparatus for long-term planning of the duration of product development at domestic enterprises, taking into account the possibility of parallel organization of work.
Key words: parallel development, development stages, connections and dependencies between types of work, planning methods

DOI: 10.34641/TM.2022.246.12.087
Zharkevich O.M., Altaikyzy A. � Improvement of the QMS with the help of an electronic document management system

This paper proposes a methodology for the implementation of document management systems in organizations to improve the QMS, support the requirements of the ISO 9001:2015 standard. This technique consists of seven stages that are performed in a cycle, which allows you to get an optimal workflow system.
Key words: improvement, quality management system, electronic document management system, process, project, user

INFORMATION

Alphabetical index of articles for 2022

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